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LakeQuality
D

Silver Lake

Ramsey County, MinnesotaEutrophic

Silver Lake earns a D — measurements through 2024 show persistent nutrient pressure that limits clarity through the summer. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

At a TSI of 62, Silver Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. A maximum depth of 47 ft puts Silver Lake in the middle of Minnesota's depth distribution. At 71 acres, Silver Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Within Ramsey County's 49 graded lakes, Silver Lake ranks 34 — below the local median, though not at the bottom.

Eurasian watermilfoil is established at Silver Lake, which can dampen recreational access and pressure the native plant community. Walleye are documented at Silver Lake, one of 12 fish species on record for the lake. A documented public access point at Silver Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 8 times at Silver Lake, with a median around Apr 12. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-11. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 4 ft. Phosphorus level: 77.5 µg/L. Trophic State Index: 62.

MetricValueGrade
Water Clarity (Secchi Depth)4 ftD
Phosphorus77.5 µg/LD
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)62Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth47 ft
Surface Area70.84 acres
Shoreline Length2.1 mi
Littoral Zone88%
Public AccessYes

Fish Species

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Silver Lake (14-day solunar calendar)

→ Is it safe to eat fish from Silver Lake? (mercury & PFAS guide)

Silver Lake fishing regulations (limits, seasons, special rules)

Invasive Species

Eurasian watermilfoil

Water Quality Trend: Stable

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.076 m/yr5
Phosphorus Declining+5.4 µg/L/yr5

Ice Season

Historical ice data from Minnesota DNR (11 observations).

Typical Ice-Out
Apr 12
Typical Ice-In
Dec 3

Estimated open water season: 235 days

EarliestLatest
Ice-Out2016-03-15 (2016)2018-04-30 (2018)
Ice-In2006-12-01 (2006)2008-12-03 (2008)

Most recent ice-out: 2020-03-28

Location

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County Ranking

Ranked #34 of 49 lakes in Ramsey County

Nearby Lakes in Ramsey County

DNR Fisheries Survey Summary

8 surveys on file from MN DNR Fisheries. Most recent: 2024-07-10 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Black Bullhead45.700.26 lb
Black Crappie31.120.17 lb
Bluegill26.610.13 lb
Yellow Perch24.790.12 lb
Common Carp9.652.61 lb
Northern Pike5.943.73 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Black Bullhead

194 fish · 46 in · 2024-07-10
99500456

Black Crappie

20 fish · 79 in · 2024-07-10
1470trophy 10789

Bluegill

62 fish · 39 in · 2024-07-10
26130trophy 103456789

Yellow Perch

302 fish · 510 in · 2024-07-10
995005678910

From the 2024-07-10 survey

Silver Lake (West) is a 71-acre (62.5 littoral acres), class 38 lake located within the Village of St. Anthony and the City of Columbia Heights. The lake is currently managed by the Fishing in the Neighborhood (FiN) program. The City of Columbia Heights operates a small swimming beach in the northwest corner and a…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Silver Lake. 3 reports on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Ice data from Minnesota DNR Climate

Most recent sample: 2024-09-11

Monitoring stations: 2